441 main board question

[msearcher]

Thank you for the references

[adnadeau]

There's a lot more involved in starting the heater than just one module. If you search for the thread "422 Overheating" (Jan 2013) & look at post #10 (or maybe #13) by me, you'll find some Zip files taken from the Monitor manual. One of the files (Troubleshoot.zip) contains the troubleshooting flow chart for the 441.

[msearcher]

Anyone know what module on the board that starts the heater?

have a board that will not allow heater to start / restart